If Franks are defeated, then almost certainly Burgundy is almost certainly not going to be some 40 years later.
This leaves an East Germanic continuum from Italy (Ostrogoths) through parts of Switzerland and Eastern France (Burgunds), Parts of Southern France and Northern Spain (Visigoths), and into Central Spain (Vandals).
Also, with victory comes the spoils. Stronger non-Roman Christian presence (i.e. Arian Christianity), means less Latin is used for religious purposes, and while Latin might be adopted in some of these areas, such as Spain, parts of France, and most of Italy, the existance of a broad East Germanic continuum suggests it might survive to the present.